perf probe: Fix --del to show info instead of warning

Fix --del option to show info message instead of warning
if failing to find specified event.

Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Jim Keniston <[email protected]>
Cc: Ananth N Mavinakayanahalli <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Frank Ch. Eigler <[email protected]>
Cc: Jason Baron <[email protected]>
Cc: K.Prasad <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Srikar Dronamraju <[email protected]>
Cc: systemtap <[email protected]>
Cc: DLE <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>

tools/perf/util/probe-event.c

@@ -544,7 +544,7 @@ static void del_trace_kprobe_event(int fd, const char *group,
 	if (e_snprintf(buf, 128, "%s:%s", group, event) < 0)
 		die("Failed to copy event.");
 	if (!strlist__has_entry(namelist, buf)) {
-		pr_warning("Warning: event \"%s\" is not found.\n", buf);
+		pr_info("Info: event \"%s\" does not exist, could not remove it.\n", buf);
 		return;
 	}
 	/* Convert from perf-probe event to trace-kprobe event */